Edge-binder.



E. RUBINSTEIN.

EDGE BINDER.

I APPLICATION FILED DEC.?3,19I6.

Patented May 22, 1917.

ELIAS RUBINSTEIN, 0F NEW YORK, "N. Y.

EDGE-BINDER.

Specification of Letters Batent. Patented May 22, 1917.

I Application'filed December 23,1916. SerialNc.13'8,644.

object to provide such an attachment with adjustable means for attaching it 'to different makes of sewing machines. 7

Another object is to provide a binder with a detachable feed-er section whereby different widths of binding material may be handled with a single binder attachment provided with a variety of interchangeable folder sections. Other objects will appear as the description proceeds.

The inventionwill be first hereinafter described in connection with the accompany ing drawings, which .constitute part of this specification, and then more specificallyde fined in the claims the "end of the description.

In the accompanying drawings wherein similar reference characters are used to des ignate corresponding parts throughout the several views:

Figurel is a plan view of a binder attachment constructed substantially in accordance with this invention, the same being shown attached to the base plate of a sewing machine, in proper position relative to theneedle, and presser foot.

Fig. 2 is a detailed view of the adjustable link for securing the binder to the base plate of a sewing machine.

Fig. 3 is a detailed view of the clamping screw for holding the link at anydesired angle with respect to the binder.

Fig. 4: is a section on the line IV-IV of Fig. 1 drawn to a larger scale.

Fig. 5 is a section on the line VV of Fig. 1 also drawn to a larger scale.

Fig. 6 is a detailed inner face view of one of the detachable folder sections.

Figs. 7 and 8 are sections taken on lines VII-VII and VIIIV'III respectively, of Fig. 6.

' Fig. 9 is a detailed inner face View of a modifiedform of folder section, and

Figs. 10 and 11 are sections along the lines X-X and XI-XI of Fig. 9.

In Fig. 1, 1 designates the base plate of a sewing machine, 2 the presser foot, "and 3 the thumb screw for fastening the binder to said base plate. It is a well known fact that the thumb screw 3 and the threaded opening in 'thebase plate into which it fits are differentlypositioned on diifere'nt makes of sewing machines, and to provide for attaching my improved binder in proper ,position relativeto the presser foot on the various makes of machines, the link 4 is pivotally connected to'the binder and adapted to be clamped in any desired adjustment, that 1s, at any given angle withrespect to the binder, by means of a clamping screw 5 passed through a lug 50 projecting from the rear face, of the binder, and an eye 10 in the end of the link 4. As illustrated in Fig. 2, the link 4 is preferably made of a single piecev of, stout wire, the eye being formed by bending one end of the wire around as illustrated, while the other extremity 11 of the wire abuts against the curved end portion 9 which forms the eye. The clamping screw 5 is formed with a head or enlargement S at its end to prevent it from being removed from the plug 50 and becoming mis'laid'or lost.

' he binder comprises a tapered tubular folder section 6 attached to a plate 7 over which the goods to be bound is pas'sed, the edge 28 (Fig. 1) of the goods extending into the open slot formed along'the inner face of the tubular section 6 between the inwardly turned edge portions 13.. Theo'uter face of the section 6 is rounded, as .at 12, Figs. 4 and 5, for turning the binding strip as will be readily understood. The section 6 is relatively short, and is fitted with a detachable folder section 1 1 which has a channeled 111. nor end portion 15 and inwardly turned flanges 19. As illustrated in Fig. 4, the inner extremity 15 of said detachable folder section is narrow and bent into the form of a shallow channel. This extremity of the folder section normally occupies a position in the section 6 near the smaller end thereof, as shown in dotted lines in Fig. 1. The in termediate portion of the section 14 is tubular in form with a slot in its inner faceforming a continuation of the slot in the section 6, and is provided with the flanges 19 which are turned inwardly at the middle portion of the section 14, as shown in Fig. 5, but which lie parallel to the flattened outer face of said section at the outer extremity thereof, as indicated in Fig. 8. It will be understood that the outer end 16 of the folder section is made in the form of a fiat tube for receiving the binding material or strip, while the intermediate portion of said folder section is made in tubular form with the inwardly turned flanges 19 for folding or turning the edges of the binder strip in the usual manner, so that when the binding strip leaves the hinder, the edges will be folded in and will not appear when said strip is stitched to the edge of the goods 28.' One of the flanges 19 has at its outer end 20 a lateral extension 17 overlapping the outer end portion 20 of the other flange 19, as shown in Fig. 6, and said overlapping parts are inclosed in a reinforcing metal strip 18.

In place of the folder section 14, a modified form of folder section 21, Figs. 9, 10 and 11, may be used. This modified form of folder section is of skeleton form, the flanges 23 being restricted to the outer end portions 22 thereof, and the intermediate section being flat. The inner end 25 of the section 21 is, however, bent into the form of a shallow channel 27 corresponding to the channeled inner end 15 of the folder section 14. Inasmuch as the folder section 21 is not provided with flanges along its intermediate portion which fits into the section 6, the inner end of said folder section is provided with a hook 26 at its inner end adapted to interlock with the curved rear face of said section 6 at the smaller end thereof for preventing the accidental withdrawal of the folder section from the section 6. The outer end of the section 21 may be reinforced by a cross pin 24 which takes the place of the reinforcing metal strip 18 of the section 14.

Either of the forms of detachable folder sections illustrated may be made with their outer ends of different widths to accommodate different widths of binding strips. In other words, each binder may be equipped with a plurality of folder sections having their outer ends of difierent widths, so that a single binder may be used for handling various widths of binding strips.

It will be observed that because the link i is pivoted to th' binder and the outer end portion of the link is detachable, said link may be folded flat upon the binder, thereby making the device very compact for carrying in the pocket, whereas the binders heretofore used, having rigid projecting links, are too bulky to conveniently carry in this way.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a binder attachment for sewing machines, the combination with a tubular main folder section having a slot and inwardly turned flanges along the margins of the slot, of a detachable folder section constituting an extension of the folder and having its inner end formed to correspond in shape and fit in the main folder section, the outer end of said detachable folder section being fiat to receive the binding strip.

2. In a binder attachment for sewing machines, the combination with a. tubular main folder section having a slot and inwardly turned flanges along the margins of the slot, of a detachable folder section having its inner end formed into a shallow channel corresponding in shape to the main folder sec tion and adapted to be arranged in the inner end of said main folder section, the intermediate portion of the detachable folder section having inwardly turned flanges corresponding to and adapted to fit the outer end of the main folder section, the outer end of said detachable folder section being flat to receive the binding strip.

3. In a binder attachment for sewing machines, the combination with a main folder section, of a detachable folder section to fit in the main folder section, the outer end portion of the detachable folder section having overlapping flanges, and a confining metal strip around said overlapped flanges.

In testimony. whereof I have signed my name to this specification.

ELIAS RUBINSTEIN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

